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Registered (prescribed) capital of capital companies, its creation and protection
Mancelová, Silvia ; Černá, Stanislava (advisor) ; Zahradníčková, Marie (referee)
Résumé Authorized Capital of Stock Companies, its Formation and Protection Czech legal regulations related to authorized capital stem from the European concept of the real formation and preservation of the authorized capital that leads particularly to providing minimum guarantee rate of the stock company to its creditors. Authorized capital is an abstract number and it expresses the financial value of assets invested in the stock capital by its partners. The Commercial Code shall expressly stipulate the duty of authorized capital formation for the limited liability company as well as joint-stock company. The duty to form authorized capital at their formation may be indirectly permitted also for limited partnerships. In professional literature, the three basic functions of authorized capital are traditionally listed. Guarantee function, authorized capital as profit and loss measure and authorized capital as a mean to specify partner's share in the company. The concept of real authorized capital formation adopted by most European legal systems is based on achieving correspondence between the authorized capital and real capital and capital preservation through protective rules. Legislator's protective tools include the ban on return of deposits, ban on acquiring own company shares, compulsory reserve fund...
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Adaptation of children to the role of schooler
Vísnerová, Tereza ; Hříbková, Lenka (advisor) ; Viktorová, Ida (referee)
The subject of my thesis is the analysis of data from observation of the first class of primary school. A child is confronted with many requirements at the beginning of school. In my work I am trying to detect school adjustment process in terms of the fresh scholar. First, I try to define the core areas to which must adapt the child entering school. This core area is here called contexts,. Then I focus on subelements of these areas of school adjustment, which result requirements for the psyche of the pupil. On the basis of observation, I identified three main areas, contexts: 1. the physical context, 2. social context and 3. school-task context. The physical context relates on such elements of the school adaptation, which are inanimated - spaces and objects. It is the need to learn how to orientate oneself in the new environment and to organize school equipments and tools. The social context is related to adaptation to new social relationships of child at school (other pupils, teacher etc.). And the scholl-task context is aimed specifically at school demands, work. An important regulator of school pupils to adapt to the first class is the clasp teacher, which manages the process. According to the demandingness of the process of adaptation to school, is my next major effort of identifying such expressions of...
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název v anglickém jazyce není uveden
Kolesová, Hana ; Grim, Miloš (advisor) ; Slípka, Jaroslav (referee) ; Nečas, Emanuel (referee)
Branchial arches region and its blood vessels are extensively transformed in the embryonic development. Aim of this study is to investigate mechanisms of the branchial arches region development and to study how a morphogen Sonic hed gehog (Shh) participate on the formation and remodeling of branchial arches and their blood vessels. Influence of Shh was evaluated based on the changes caused by its inhibition in vivo. Shh function was inhibited with an anti-Shh antibody, which was produced into the embryo from the applied hybridoma cells. Shh signaling cascade was also inhibited by cyclopamine. Results show that Shh is important for dc novo format,ion of the blood vessels in the branchial arches region. Further Shh is necessary for stabilization of the vessel wall, mainly for anterior cardinal vein. Shh also alfects later vessel development and transformation, which includes i.e. fusion of the dorsal aorta, branching of the internal carotid artery and outflow tract development. Short time inhibition of Shh has minor effect on the apoptosis and proliferation activity of the branchial arches region mesenchymal cells. We assume that Shh signals directly to the blood vessels endothelial cells, as Shh receptor ptel is also expressed in endothelial cells and its signal is reduced with Shh inhibition. In studied...
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Aspects of Gene Regulation of CYP3A4 in Hepatic Tissue.
Krausová, Lucie ; Štaud, František (advisor) ; Mičuda, Stanislav (referee) ; Skálová, Lenka (referee)
1 Summary CYP3A4 is an important enzyme involved in elimination of majority of metabolized xenobiotics. It plays a major role in the detoxification system of the human body, therefore it is responsible for many drug-drug interactions (DDIs). DDI present a complication of current pharmacotherapy, in the extreme they can lead in failure of therapy or in life-threatening toxic effects. DDIs are caused by changes in enzymatic activity of CYP3A4, which is highly variable among individuals. An important mechanism of modulating CAP3A4 activity is the regulation of inducible transcription by nuclear receptors, especially PXR, CAR and GR. The structure of CYP3A4 promoter and mechanisms of transcriptional regulation has been studding intensively for many years, but the research of relationship of nuclear receptors and transcriptional cofactors in CYP3A4 transactivation is still incomplete. Present work contributes to elucidation of some questions concerning the effects of azole antimycotics on CYP3A4 transcription via PXR, potency of valproic acid to activate PXR and CAR or determinants of CYP3A4 expression via GR in placental cells. The experiments were performed with up-to-date molecular biology methods and using in vitromodels of the primary human hepatocytes and hepatoma cell lines. To the aims of the doctoral...
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Signaling pathways and genes regulating gonadotropin-induced maturation of porcine oocytes and cumulus expansion
Blaha, Milan ; Němcová, Lucie (advisor) ; Král, Jiří (referee)
In vitro, meotic maturation of porcine oocytes and cumulus expansion are induced by FSH and EGF-like peptides AREG and EREG. FSH and EGF-like peptides induce expression of cumulus expansion-related genes (HAS2, PTGS2 and TNFAIP6). To define signaling pathways that control FSH- and AREG-induced cumulus expansion, porcine cumulus-oocyte complexes were treated with specific protein kinase inhibitors. Inhibitors of MAPK3/1, MAPK14 and ERBB1 significantly reduced both FSH- and AREG-induced expression of HAS2, PTGS2 and TNFAIP6. These inhibitors decreased FSH/LH-induced expression of AREG and EREG in mural granulosa cells. Surprisingly, inhibitor of PKA had no effect on AREG expression in cumulus-oocyte complexes but the inhibitor decreased expression of TNFAIP6 induced by AREG. Inhibitor of PI3K increased expression levels of AREG and PTGS2 but EREG, HAS2 and TNFAIP6 were reduced. Expression levels of the cumulus expansion-related genes were not affected by an analog of cGMP (8-CPT-cGMP). However, 8-CPT-cGMP blocked spontaneous in vitro meiotic maturation of porcine oocytes and its effect was abolished by FSH. Key words: cumulus expansion, cumulus expansion-related genes, meotic maturation, FSH, amphiregulin, cGMP
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MDOCTM effect on expression of cell adhesion molecules / / in the vessel wall of ApoE / LDLR-deficient mice
Drnek, Ludvik ; Nachtigal, Petr (advisor) ; Štaud, František (referee)
Atherosclerosis belongs to the cardiovascular diseases, which have been the most frequent cause of the morbidity and mortality in all the economically advanced countries of Europe and the USA in the last few years. The purpose of this thesis was to find some potential hypolipidemic and antiinflammatory effects of MDOC. The new potential substance belongs to the group of dietary fibre. ApoE/LDLr-deficient mice (n=8) was used in the study. The mice were fed with aterogenic diet containing 1.25% cholesterol for 8 weeks. In MDOC group, the mice were fed on the same aterogenic diet, with 5% MDOC added to this diet. Blood sample for the biochemical investigation were taken from animals. Then, partitions of the tissue formed by the aorta together with the upper part of the heart were taken, too. Then, a biochemical analysis of the blood was made and also in aortic sinus and arch an imunohistochemical and stereological analysis of the endothelial expression of VCAM-1 and ICAM-1 were performed. The results of the biochemical analysis showed that MDOC treatment resulted in a significant decrease of total cholesterol, VLDL and significant increase of HDL cholesterol. Stereological analysis of immunohistochemical staining showed significant decrease of VCAM-1 staining in the atherosclerotic lesion after the...
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Effects of Spirulina platensis on the expression of endothelial NO synthase in apoE-deficient mouse model of atherosclerosis
Pešlová, Monika ; Nachtigal, Petr (advisor) ; Kopecký, Martin (referee)
1. ABSTRACT Spirulina platensis is a blue-green microalga belonging to the cyanobacteria family. Microalga is a large source of proteins and good fatty acid and other nutritional elements, for example iron, calcium, chromium, lithium, selenium. It also contains natural dyes chlorophyll, phycocyanin. Its antioxidant and anti-inflammatory were described. The aim of this thesis was to determine potencial hypolipidemic effects and potential effects on endothelium of Spirulina platensis in apoE-deficient mice. ApoE-deficient mice were fed standard diet for 2 weeks. At the age of 8 weeks the control group of animals were fed with the western type diet, which contained 21% fat and 0,15% cholesterol for 8 weeks. The same atherogenic diet was used in Spirulina platensis group, where Spirulina platensis was added to the atherogenic diet at the dosage of 20 mg per day. The biochemical analysis of lipid spectrum was done, area of atherosclerotic lesions was determined and imunohistochemical and stereological analysis of eNOS expression was performed as well. The results of this thesis showed positive effects of Spirulina platensis on cholesterol levels, VLDL and LDL cholesterol. Moreover stereological analysis of imunohischemical staining revealed that, that endotelial expression eNOS was significantly increased by...
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Calculus Bovis effect on blood lipids and the expression of endothelial NO synthesis / / in ApoE-deficient mouse model of atherosclerosis
Studená, Romana ; Nachtigal, Petr (advisor) ; Trejtnar, František (referee)
Calculus Bovis is one of the most precious and commonly-used medicinal materials in China. It is consists predominantly bilirubin and bile acids. In this thesis we focused on possible effects of Calculus Bovis on lipids and atherogenesis in apoE-deficient mice. ApoE-deficient mice were fed standard diet for 2 weeks. At the age of 8 weeks the control group of animals were fed with the western type diet, which contained 21% fat and 0,15% cholesterol for 8 weeks. The same atherogenic diet was used in Calculus Bovis group, where Calculus Bovis was added to the atherogenic diet at the dosage of 50 mg/kg b.wt. Calculus Bovis (Artificial bezoar, Biopharma, Australia) per day. The biochemical analysis of lipid spectrum was done, area of atherosclerotic lesions was determined and imunohistochemical and stereological analysis of eNOS expression was performed as well. Calculus bovis treatment did not affect blood lipids, total cholesterol, VLDL, LDL, HDL and TAG when compared with control mice. Moreover Calculus bovis treatment did not decrease either atherosclerotic plaque area or endothelial expression of eNOS. The failure of Calculus Bovis treatment in this pilot study could be probably related to insufficient dose of Calculus Bovis.
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